/****************************************************************
 *
 * Miscellany which doesn't really fit in a module header...
 */

/* General system config stuff */

#define NS_AOLSERVER_3_PLUS
#define NS_EXPORT
#define DllExport /* nothing */

/* Protocol handling data structures */

typedef enum {
    Preserve, ToLower, ToUpper
} Ns_HeaderCaseDisposition;

#define Ns_InfoServersStarted() (Tcl_request_rec != 0)

/* Critical sections */

typedef int Ns_Cs;
#define Ns_CsEnter(x) (*(x) = 0) /* use the variable */
#define Ns_CsLeave(x) (*(x) = 0) /* use the variable */

/* Dealing with tcl */

void NsTclCreateCmds(Tcl_Interp *interp);
typedef int Ns_TclInterpInitProc(Tcl_Interp *interp, void *ignored);
typedef int ns_tcl_command (ClientData, Tcl_Interp *, int, char **);

typedef struct TclCmd {
    char           *name;
    Tcl_CmdProc    *proc;
    ClientData      clientData;
} TclCmd;

int NsTclEval(Tcl_Interp *interp, char *script);
char *Ns_TclLogError(Tcl_Interp *interp);
int Ns_TclGetOpenFd(Tcl_Interp *interp, char *chanId, int write, int *fdPtr);
int Ns_TclGetOpenChannel(Tcl_Interp *interp, char *chanId, int write,
			 int check, Tcl_Channel *chanPtr);

#define Ns_TclInterpServer(x) nsServer

/****************************************************************
 *
 * Just plain library crud... 
 */

#include <assert.h>
#include <time.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>

#ifdef __sun
#include <sys/filio.h>		/* for FIONREAD */
#endif

#define NS_OK 0
#define NS_ERROR (-1)
#define NS_TIMEOUT (-2)

#define NS_TRUE 1
#define NS_FALSE 0

#define Ns_CheckStack() NS_OK
#define STREQ(x,y) (!strcmp((x),(y)))
#define STRIEQ(x,y) (!strcasecmp((x),(y)))
#define UCHAR(x) ((unsigned char)(x))

#define ns_localtime localtime
#define ns_gmtime    gmtime

/* Networking */

#define ns_inet_ntoa inet_ntoa
#define ns_sockioctl ioctl
#define ns_sockerrno errno
#define ns_sockdup   dup
#define ns_sockclose close
#define ns_socknbclose close
#define ns_sockstrerror strerror
#define INVALID_SOCKET  -1
typedef int SOCKET;
     
SOCKET Ns_SockConnect(char *host, int port);
SOCKET Ns_SockAsyncConnect(char *host, int port);
SOCKET Ns_SockTimedConnect(char *host, int port, int timeout);

/* Use ap_palloc, etc. for these? */

#define ns_malloc  malloc
#define ns_calloc  calloc
#define ns_realloc realloc
#define ns_free    free
#define ns_strdup  strdup

#define Ns_Malloc  malloc
#define Ns_Realloc realloc
#define Ns_Free    free

#define Ns_StrDup  strdup

char *ns_strcopy(const char *x);
typedef void Ns_Callback(void *);